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geom.h

/*
    libparted - a library for manipulating disk partitions
    Copyright (C) 1998-2001 Free Software Foundation, Inc.

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
*/

#ifndef PED_GEOM_H_INCLUDED
#define PED_GEOM_H_INCLUDED

#include <parted/device.h>
#include <parted/timer.h>

typedef struct _PedGeometry   PedGeometry;

struct _PedGeometry {
      PedDevice*        dev;
      PedSector         start;
      PedSector         length;
      PedSector         end;
};

extern int ped_geometry_init (PedGeometry* geom, const PedDevice* dev,
                        PedSector start, PedSector length);
extern PedGeometry* ped_geometry_new (const PedDevice* dev, PedSector start,
                              PedSector length);
extern PedGeometry* ped_geometry_duplicate (const PedGeometry* geom);
extern PedGeometry* ped_geometry_intersect (const PedGeometry* a,
                                        const PedGeometry* b);
extern void ped_geometry_destroy (PedGeometry* geom);
extern int ped_geometry_set (PedGeometry* geom, PedSector start,
                       PedSector length);
extern int ped_geometry_set_start (PedGeometry* geom, PedSector start);
extern int ped_geometry_set_end (PedGeometry* geom, PedSector end);
extern int ped_geometry_test_overlap (const PedGeometry* a,
                                    const PedGeometry* b);
extern int ped_geometry_test_inside (const PedGeometry* a,
                             const PedGeometry* b);
extern int ped_geometry_test_equal (const PedGeometry* a, const PedGeometry* b);
extern int ped_geometry_test_sector_inside (const PedGeometry* geom,
                                        PedSector sect);

extern int ped_geometry_read (const PedGeometry* geom, void* buffer,
                        PedSector offset, PedSector count);
extern int ped_geometry_write (PedGeometry* geom, const void* buffer,
                         PedSector offset, PedSector count);
extern PedSector ped_geometry_check (PedGeometry* geom, void* buffer,
                             PedSector buffer_size, PedSector offset,
                             PedSector granularity, PedSector count,
                             PedTimer* timer);
extern int ped_geometry_sync (PedGeometry* geom);

/* returns -1 if "sector" is not within dest's space. */
extern PedSector ped_geometry_map (const PedGeometry* dst,
                           const PedGeometry* src,
                           PedSector sector);

#endif /* PED_GEOM_H_INCLUDED */


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